文章基本信息

标题：Hybrid multiple watermarking technique for securing medical images of modalities MRI, CT scan, and X-ray
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作者：Imane Assini ; Abdelmajid Badri ; Aicha Sahel 等
期刊名称：International Journal of Electrical and Computer Engineering
电子版ISSN：2088-8708
出版年度：2020
卷号：10
期号：3
页码：2349-2356
DOI：10.11591/ijece.v10i3.pp2349-2356
出版社：Institute of Advanced Engineering and Science (IAES)
摘要：In order to contribute to the security of sharing and transferring medical images, we had presented a multiple watermarking technique for multiple protections; it was based on the combination of three transformations: the discrete wavelet transform (DWT), the fast Walsh-Hadamard transform (FWHT) and, the singular value decomposition (SVD). In this paper, three watermark images of sizes 512x 512 were inserted into a single medical image of various modalities such as magnetic resonance imaging (MRI), computed tomography (CT), and X-Radiation (X-ray). After applying DWT up to the third level on the original image, the high-resolution sub-bands were being selected subsequently to apply FWHT and then SVD. The singular values of the three watermark images were inserted into the singular values of the cover medical image. The experimental results showed the effectiveness of the proposed method in terms of quality and robustness compared to other reported techniques cited in the literature.
关键词：Digital watermarking;Medical image;DWT;FWHT;SVD